<template>
<div class="icons">
  <swiper :options="swiperOption">
    <swiper-slide v-for="(page,index) of pages" :key="index">
      <div class="icon" v-for="item of page" :key="item.id" >
        <div class="icon-img">
          <img class="icon-img-content" :src="item.imgUrl" alt="">
        </div>
        <p class="icon-desc">{{item.desc}}</p>
      </div>
    </swiper-slide>
  </swiper>
</div>
</template>

<script>
export default {
  name: 'Icons',
  props: {
    list: Array
  },
  data () {
    return {
      swiperOption: {
        loop: false
      }
    }
  },
  computed: {
    pages () {
      const pages = []
      this.list.forEach((item, index) => {
        const page = Math.floor(index / 8)
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(item)
      })
      return pages
    }
  }
}
</script>

<style  lang="stylus" scoped>
  .icons
    width 100%
    height 0
    overflow hidden
    padding-bottom 54%
    .icon
      float left
      position relative
      overflow hidden
      width 25%
      height 0
      padding-bottom 25%
      .icon-desc
        position absolute
        height 0.44rem
        line-height 0.44rem
        bottom 0
        width 100%
        text-align center
      .icon-img
        position absolute
        top 0
        left 0
        right 0
        bottom 0.1rem
        .icon-img-content
          display block
          margin 0 auto
          height 100%
          transform: scale(0.7,0.7)
</style>
